Hi everyone
I am using WRF-ChemV4.2.2 for fog simulations. I need to run the model with the indirect effect: "Either Lin et al. or the Morrison microphysics schemes are the current possible choices."
In the model, fog is diagnosed when the Liquid Water Content (LWC) (given by the QCLOUD) is present at the lowest model level.
I observed that fog dissipates much earlier in both Lin and Morrison than in the observations. In Morrison, the magnitude of LWC was very small (<0.002g/m3) for the fog case in consideration.
From the literature review, I understood that droplet activation in microphysics schemes depends on CCN concentration, CCN radius, updraft velocity, hygroscopicity, etc.
So, if I want to carry out some sensitivity through variations of these variables, which codes should I modify, and what variables should I look for? What are the values that I can change?
Will modifying the CCN activation improve the time evolution and magnitude of QCLOUD?
Looking forward to any help, advice, or suggestions.
Thank you
I am using WRF-ChemV4.2.2 for fog simulations. I need to run the model with the indirect effect: "Either Lin et al. or the Morrison microphysics schemes are the current possible choices."
In the model, fog is diagnosed when the Liquid Water Content (LWC) (given by the QCLOUD) is present at the lowest model level.
I observed that fog dissipates much earlier in both Lin and Morrison than in the observations. In Morrison, the magnitude of LWC was very small (<0.002g/m3) for the fog case in consideration.
From the literature review, I understood that droplet activation in microphysics schemes depends on CCN concentration, CCN radius, updraft velocity, hygroscopicity, etc.
So, if I want to carry out some sensitivity through variations of these variables, which codes should I modify, and what variables should I look for? What are the values that I can change?
Will modifying the CCN activation improve the time evolution and magnitude of QCLOUD?
Looking forward to any help, advice, or suggestions.
Thank you